TM 1–1520–238–T–2 2–103 Table 2–1. Master Failure Symptom Index (cont) Failure Symptom MOC Reference LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: DISPLAY SWITCH SET TO DEST/TGT AND DEST DIST THUMBWHEEL SET TO P) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: DISPLAY SWITCH SET TO PP) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 0) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 2) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 4) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 5) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 6) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 7) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128 LEFT, CENTER AND RIGHT DISPLAYS ARE NOT LIGHTED CORRECTLY (CPG DPLR NAV PANEL: KYBD KEY PRESSED AND DEST DISP THUMBWHEEL SET TO 8) TM 11–1520–238–23–2 DOPPLER NAVIGATION SYSTEM (DNS) AN/ASN–128